diff --git a/browser_patches/firefox/BUILD_NUMBER b/browser_patches/firefox/BUILD_NUMBER
index f27ca9179b..80a46850a1 100644
--- a/browser_patches/firefox/BUILD_NUMBER
+++ b/browser_patches/firefox/BUILD_NUMBER
@@ -1,2 +1,2 @@
-1213
-Changed: dgozman@gmail.com Fri Nov 20 07:01:37 PST 2020
+1214
+Changed: lushnikov@chromium.org Mon 23 Nov 2020 04:14:36 PM PST
diff --git a/browser_patches/firefox/UPSTREAM_CONFIG.sh b/browser_patches/firefox/UPSTREAM_CONFIG.sh
index 27a0775eff..68fabad6ca 100644
--- a/browser_patches/firefox/UPSTREAM_CONFIG.sh
+++ b/browser_patches/firefox/UPSTREAM_CONFIG.sh
@@ -1,3 +1,3 @@
 REMOTE_URL="https://github.com/mozilla/gecko-dev"
 BASE_BRANCH="beta"
-BASE_REVISION="9ba42d1a42c915e950b4a9fead1a492bb0c252e8"
+BASE_REVISION="4a9b537792fa5e015dadd83ff61dbf3012d4fa9d"